Accommodation container

ABSTRACT

The present invention relates to an accommodation container and, more specifically, to an accommodation container capable of easily and simply winding a flexible glass-bonded substrate and accommodating the same. To this end, the present invention provides the accommodation container comprising: a container body having a slit, formed at one side thereof, for providing a passage such that the flexible glass-bonded substrate having magnetism is inserted or withdrawn; and a core part rotatably formed inside the container body, formed in parallel to the slit, and winding, around the outer peripheral surface thereof, the flexible glass-bonded substrate by rotation in a state in which the end portion of the flexible glass-bonded substrate, inserted into the container body through the slit, is fixed by magnetic adsorption.

TECHNICAL FIELD

The present disclosure generally relates to a storage container. Moreparticularly, the present disclosure relates to a storage container ableto simply and easily accommodate a flexible glass-bonded substrate in awound state.

BACKGROUND ART

Glass, as a type of material that is optically transparent, hard, andbrittle, may be manufactured to have a thickness of several millimetersand is used as the substrates of a variety of industrial products.Recently, in response to the development of various technologies, thethickness of the glass used in such substrates is gradually decreasing.In particular, current developments in the glass-manufacturingtechnologies used by specialist glass manufacturers for specialcompositions and surface quality management have arrived at such a levelthat ultrathin flexible glass substrates can be manufactured to have athickness of 0.3 mm or less and can be wound as a roll.

At present, ultrathin flexible glass substrates are in the early stagesof development, with the possibility thereof of being used in severalapplications being investigated. It is expected that the use ofultrathin flexible glass substrates will increase to have applicationsin a variety of fields, such as in healthcare devices, wearable devices,and the like, as well as display substrates, to which ultrathin flexibleglass substrates are being applied. Among the variety of applications ofultrathin flexible glass substrates, applications in which ultrathinflexible glass substrates are used as the outer layers (skins) of othersubstrates have recently increased. Applications or technologies inwhich ultrathin flexible glass substrates are applied as the outerlayers of other substrates, use a variety of bonding techniques in orderto bond ultrathin flexible glass substrates to industrial materialshaving a certain thickness, such as steel, wood, plastic, andpolyethylene terephthalate (PET). Consequently, the advantages of glass,such as a high level of surface hardness, ease of cleaning, a barrierfunction, or the like, are combined with the properties of theindustrial materials, whereby flexible glass bonded substrates having avariety of superior characteristics can be manufactured.

Flexible glass bonded substrates must be packaged and transported inorder to be sold or used. In this regard, a storage container dedicatedto flexible glass bonded substrates is required. The storage containeris required to have certain characteristics, such as a small volume,lightness, and the ability to protect flexible glass bonded substratesaccommodated therein. For this, in the related art, a flexible glassbonded substrate is wound around a hollow cylindrical core, and an outercover is wrapped on the flexible glass bonded substrate in order toprotect the flexible glass bonded substrate that would otherwise beexposed to external impacts.

However, when the flexible glass bonded substrate is unwound, it may bedifficult to strip the flexible glass bonded substrate from the core,depending on how the proximal end of the flexible glass bonded substrateis fixed to the core. After the flexible glass bonded substrate isunwound, the cover must be stripped from the flexible glass bondedsubstrate, which may be somewhat difficult. Consequently, the longevityof the cover may be decreased, which is problematic. In brief, in therelated art, the method of accommodating flexible glass bondedsubstrates or the storage container dedicated to the accommodation offlexible glass bonded substrates may be inconvenient for users, which isproblematic.

DISCLOSURE Technical Problem

Various aspects of the present disclosure provide a storage containerable to simply and easily accommodate a flexible glass-bonded substratein a wound state.

Technical Solution

According to an aspect, a storage container includes: a container bodyhaving an entrance such as a slit through which a flexible glass-bondedsubstrate having magnetism is introduced or withdrawn; and a core partrotatably disposed within the container body to extend in parallel tothe slit. The core part can magnetically fix the proximal end of theflexible glass-bonded substrate introduced into the container bodythrough the entrance, such that the flexible glass-bonded substrate iswound around the outer circumferential surface of the core part when thecore part is rotated.

The core part may include: a core body having both ends opposing eachother in the longitudinal direction of the core body, the core bodybeing rotatably coupled to corresponding walls of the container body;and magnet units arranged on the inner circumferential surface of thecore body in the longitudinal direction of the core body, therebymagnetically attracting and fixing the proximal end of the flexibleglass-bonded substrate to the outer circumferential surface of the corebody.

The core part may include: a core body having both ends opposing eachother in the longitudinal direction of the core body, the core bodybeing rotatably coupled to corresponding walls of the container body;and magnet units arranged on the outer circumferential surface of thecore body in the longitudinal direction of the core body, therebymagnetically attracting and fixing the proximal end of the flexibleglass-bonded substrate to the magnet units.

The core body may include: a plurality of disks erected perpendicularlyto the bottom surface of the container body, and spaced apart from eachother in the longitudinal direction of the core body while facing eachother; and a plurality of connecting bars connecting outercircumferential surfaces of the plurality of disks together, andextending in the longitudinal direction of the core body.

Each of the disks may have at least one through hole which is formedthrough the disk.

The magnet units may be disposed on at least one connecting bar amongthe plurality of connecting bars.

The magnet units may be disposed on at least two connecting barsadjacent to each other among the plurality of connecting bars.

The plurality of disks may have fitting recesses on the outercircumferential surfaces thereof, each fitting recess having a depthcorresponding to the thickness of each connecting bar. The plurality ofconnecting bars may be fitted into the fitting recesses of the pluralityof disks.

The plurality of connecting bars may have recesses on the surfacesthereof, each recess having a depth corresponding to the thickness ofeach magnet unit. The magnet units may be fitted into the recesses ofthe plurality of connecting bars.

The storage container may further include a guide part disposed on thebottom surface of the container body, the guide part guiding theflexible glass-bonded substrate introduced into the container bodytoward the core part.

The guide part may include an inclined surface inclined upwardly towardthe core part in a direction in which the flexible glass-bondedsubstrate is introduced.

The guide part may further include a horizontal surface below the corepart and connected to the inclined surface. The storage container mayfurther include at least one roller disposed on the horizontal surface,the at least one roller being in rolling contact with the undersidesurface of the flexible glass-bonded surface.

The roller may be supported elastically in the top-bottom direction.

The storage container may further include a brush on the upper surfaceof the entrance, such that the upper surface of the flexibleglass-bonded substrate comes into contact with the brush.

The storage container may further include handles connected to the corepart and projecting from the outer surfaces of the container body, suchthat a user can rotate the core part using the handles.

The flexible glass-bonded substrate may include a base substrate and anultra-thin sheet of glass bonded to the base substrate.

The thickness of the ultra-thin sheet of glass may be 0.3 mm or less.

Advantageous Effects

According to the present disclosure, the core part can wind or unwind aflexible glass bonded substrate while magnetically fixing the proximalend of the flexible glass bonded substrate having magnetism in a fixedposition. It is therefore easier and simpler to wind and accommodate theflexible glass bonded substrate or unwind and use the flexible glassbonded substrate in a more reliable manner. Physical force applied tothe flexible glass bonded substrate when winding or unwinding theflexible glass bonded substrate is minimized, whereby the flexible glassbonded substrate can be protected from damage.

In addition, according to the present disclosure, the core part isdisposed within the container body, whereby the flexible glass bondedsubstrate wound around the core part is also accommodated within thecontainer body. It is therefore possible to fundamentally prevent theflexible glass bonded substrate from being contaminated by external dustor impurities.

Furthermore, according to the present disclosure, the core part isstructured such that the weight thereof is minimized, such that thestorage container can be more easily transported.

In addition, according to the present disclosure, the proximal end ofthe flexible glass bonded substrate is introduced into the containerbody by being guided to the core part along the inclined surface of theguide part disposed on the bottom surface of the container body. It istherefore possible to magnetically fix the flexible glass bondedsubstrate in a more reliable manner.

Furthermore, according to the present disclosure, the elasticallysupported roller disposed on the horizontal surface of the guide partcan guide the flexible glass bonded substrate having a range ofthicknesses to the core part.

In addition, according to the present disclosure, in the process ofwinding the flexible glass bonded substrate that has been used as ablackboard or a whiteboard, letters or the like can be convenientlyerased from the surface of the flexible glass bonded substrate using thebrush disposed on the upper inner surface of the slit of the containerbody. Impurities can also be removed from the surface of the flexibleglass bonded substrate while the flexible glass bonded substrate isbeing wound. It is therefore possible to prevent a sheet of ultrathinglass forming one surface of the flexible glass bonded substrate frombeing broken due to impurities when winding the flexible glass bondedsubstrate.

Furthermore, according to the present disclosure, it is possible tosimply and easily wind or unwind the flexible glass bonded substrate byrotating the core part forwards or backwards using a handle projectingfrom the outer wall surface of the container body.

DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view illustrating a storage container accordingto a first exemplary embodiment;

FIG. 2 is a cross-sectional view of the strorage container in FIG. 1;

FIG. 3 is an exploded perspective view illustrating a storage containeraccording to a second exemplary embodiment;

FIG. 4 is a top-plan view illustrating the core part illustrated in FIG.3;

FIG. 5 is a cross-sectional view illustrating the storage container inFIG. 3;

FIG. 6 is a cross-sectional view illustrating a storage containeraccording to a third exemplary embodiment;

FIG. 7 is a cross-sectional view illustrating a storage containeraccording to a fourth exemplary embodiment; and

FIG. 8 and FIG. 9 are cross-sectional views schematically illustratingthe upward and downward movements of the roller according to thethicknesses of flexible glass bonded substrates.

MODE FOR INVENTION

Reference will now be made in detail to a storage container according toexemplary embodiments of the present disclosure, examples of which areillustrated in the accompanying drawings and described below, so that aperson skilled in the art to which the present disclosure relates couldeasily put the present disclosure into practice.

Throughout this document, reference should be made to the drawings, inwhich the same reference numerals and symbols will be used throughoutthe different drawings to designate the same or like components. In thefollowing description, detailed descriptions of known functions andcomponents incorporated herein will be omitted in the case that thesubject matter of the present disclosure is rendered unclear by theinclusion thereof.

Hereinafter, a storage container according to a first exemplaryembodiment of the present disclosure will be described with reference toFIG. 1 and FIG. 2. As illustrated in FIG. 1 and FIG. 2, the storagecontainer 100 according to the first exemplary embodiment is a containeraccommodating a flexible glass bonded substrate 10 therein, such thatthe volume of the flexible glass bonded substrate 10 is minimized inorder to easily store or transport the flexible glass bonded substrate10. Here, the flexible glass bonded substrate 10 includes a basesubstrate 11 and an ultrathin glass sheet 12 bonded to the basesubstrate 11. When flexible glass bonded substrate 10 is used as, forexample, a board (a blackboard or a whiteboard), the base substrate 11may be formed of a magnetic material based on, for example, steel, wood,plastic, or polyethylene terephthalate (PET), such that the basesubstrate 11 can be freely attached to and detached from a wall formedof metal. The thickness of the base substrate 11 may range from 100 μmto 5,000 μm. The thickness of the ultrathin glass sheet 12 may be 0.3 mmor less. The ultrathin glass sheet 12 is bonded to the base substrate 11by means of an adhesive layer 13. The ultrathin glass sheet 12 forms thesurface of the flexible glass bonded substrate 10 to be used as a board,due to advantageous characteristics thereof, such as a high level ofsurface hardness and ease of cleaning. The use of the flexible glassbonded substrate 10 as a board is merely illustrative, and the flexibleglass bonded substrate 10 may be applied to a variety of fields.

In order to accommodate the flexible glass bonded substrate 10 asdescribed above, the storage container 100 according to the firstexemplary embodiment includes a container body 110 and a core part 120.

The container body 110 forms the outer casing of the storage container100. The container body 110 has a hollow interior space in which thecore part 120 is disposed and in which the flexible glass bondedsubstrate 10 is accommodated. Although the container body 110 isillustrated as being box-shaped, the container body 110 may becylindrical. The container body 110 has a slit 111 functioning as anentrance through which the flexible glass bonded substrate 10 isintroduced and withdrawn. It is preferable that the slit 111 be formedin the bottom of the front surface of the container body 110 so that theflexible glass bonded substrate 10 can be easily introduced andwithdrawn. When the flexible glass bonded substrate 10 is used as theboard, letters or the like that have not been erased may be left on orimpurities may remain stuck to the upper surface of the flexible glassbonded substrate 10 (based on the paper surface of FIG. 1 and FIG. 2),i.e. the surface of the ultrathin glass sheet 12. Thus, a brush 112 isdisposed on the upper inner surface of the slit 111 of the containerbody such that the brush 112 is in contact with the upper surface of theflexible glass bonded substrate 10. For example, the brush 112 may havethe form of a curtain extending in the longitudinal direction of theslit 111. When the brush 112 is disposed on the upper inner surface ofthe slit 111, the letters or impurities may be removed from the surfaceof the ultrathin glass sheet 12 through contact with the brush 112 whilethe flexible glass bonded substrate 10 is being introduced into thecontainer body 110, i.e. while the flexible glass bonded substrate 10 issliding into the container body 110 through the slit 111. Consequently,there is a comfort for users in that the operation of intentionallyremoving letters or impurities is not required. In addition, it ispossible to prevent the ultrathin glass sheet 11 forming the uppersurface of the flexible glass bonded substrate 10, i.e. one surface ofthe flexible glass bonded substrate 10, from being broken by impuritieswhen the flexible glass bonded substrate 10 is wound around the corepart 120. In this regard, the brush 112 may also be disposed on thelower inner surface of the slit 111. When the brush 112 is disposed onthe lower inner surface of the slit 111, the undersurface of theflexible glass bonded substrate 10 (based on the paper surface), i.e.the surface of the base substrate 11, can be prevented from being markedthrough contact with the lower inner surface of the slit 111 while theflexible glass bonded substrate 10 is being introduced into thecontainer body 110. In addition, resistance is minimized, such that theoperation of winding the flexible glass bonded substrate 10 can beeasily performed with a small amount of force.

Handles 113 connected to the rotary shaft of the core part 120 mayproject from two outer surfaces of the container body 110, such that auser can simply and easily rotate the core part 120 from outside of thecontainer body 110. The handle 113 may be manipulated to rotate the corepart 120 in the forward direction in which the flexible glass bondedsubstrate 10 is wound and in the backward direction in which theflexible glass bonded substrate 10 is unwound. In addition, the handles113 may have a foldable structure in order to prevent an increase involume. Thus, when the storage container 100 is transported, the handles113 can be folded onto the outer surfaces of the container body 110. Inaddition, the handles 113 may be unfolded horizontally, such that theuser can rotate the handles 113 by holding the handles 113 with handswhen winding or unwinding the flexible glass bonded substrate 10. Atthis time, since the user manipulates the rotation of the core part 120within the container body 110 using the handles 113 from outside thecontainer body 110, the user is required to be able to visuallyrecognize the rotation of the core part 120 and/or the state of theflexible glass bonded substrate 10 being wound around or unwound fromthe core part 120. In this regard, the entire surfaces or the uppersurface of the container body 110 may be formed of a transparentmaterial such that the user can see into the container body 110. Inaddition, the container body 110 may be configured such that a portionor the entirety of the upper surface thereof is open. After theoperation of winding the flexible glass bonded substrate 10 on the corepart 120 using the handles 113 is completed, the handles 113 mayaccidently be rotated backwards by an external impact, and thereby, theflexible glass bonded substrate 10 may be unwound. In order to preventthis, the handles 113 may be provided with a locking unit (not shown)allowing or stopping the rotation of the handles 113, i.e. setting thehandles 113 to a locked position or an unlocked position.

The core part 120 is rotatably disposed within the container body 110.Since the core part 120 is disposed within the container body 110, theflexible glass bonded substrate 10 wound around the core part 120 isaccommodated within the container body 110, whereby the flexible glassbonded substrate 10 is entirely prevented from being contaminated byexternal dust or impurities. Here, the core part 120 magnetically fixesthe proximal end 10 a of the flexible glass bonded substrate 10introduced into the container body 110 through the slit 111, so that theflexible glass bonded substrate 10 can be wound around the outercircumferential surface of the core part when the core part is rotated.When the proximal end 10 a of the flexible glass bonded substrate 10 ismagnetically fixed to the core part 120, the flexible glass bondedsubstrate 10 may be accommodated by being wound or may be unwound to beused, more simply and easily in a reliable manner. In addition, when theflexible glass bonded substrate 10 is wound or unwound, the amount ofphysical force applied to the flexible glass bonded substrate 10 may beminimized, thereby preventing the flexible glass bonded substrate 10from being damaged during a winding or unwinding operation.

The core part 120 according to the first embodiment includes a core body121 and a magnet unit 122. The core body is in the shape of a cylinderhaving a hollow interior space. Both longitudinal ends of the core body121 are rotatably coupled to both side walls of the container body 110.In addition, both longitudinal ends of the core body 121 are connectedto the handles 113 projecting from outer surfaces of both the side wallsof the container body 110. The hollow space formed within the core body121 not only provides a space in which the magnet unit 122 is disposedbut also allows the storage container 100 to be easily transported, i.e.reduces the weight of the core part 120. It is preferable that the outerdiameter of the core body 121 range from 400 mm to 800 mm. When theouter diameter of the core body 121 is less than 400 mm, the curvatureof the flexible glass bonded substrate 10 wound around the core body 121is excessively large, whereby the ultrathin glass sheet 12 of theflexible glass bonded substrate 10 may be broken during winding. Whenthe outer diameter of the core body 121 exceeds 800 mm, the volume ofthe container body 110 accommodating the core body 121 is also enlargedby the same amount, whereby the storage container 100 may not passthrough an office door of a typical size. In other words, if the outerdiameter of the core body 121 is greater than 800 mm, the use of theflexible glass bonded substrate 10 as a board is inconvenient, since theflexible glass bonded substrate 10 must be unwound from the core body121 outside of a workplace office before moving the flexible glassbonded substrate 10 into the workplace. In addition, when the flexibleglass bonded substrate 10 is manufactured within a room, it may bedifficult to move the flexible glass bonded substrate 10 wound aroundthe core body 121 through the door.

The magnet unit 122 is disposed on the inner circumferential surface ofthe core body 110, extending in the longitudinal direction through theinterior space of the core body 110. The magnet unit 122 magneticallyattracts the proximal end 10 a of the flexible glass bonded substrate10, whereby the proximal end 10 a sticks to the outer circumferentialsurface of the core body 110. The magnet unit 122 may be implemented asa permanent magnet or an electromagnet. For example, when anelectromagnet is provided as the magnet unit 122, it is possible tounwind the flexible glass bonded substrate 10 from the outercircumferential surface of the core body 110 by simply blocking thesupply of current to the magnet unit 122. The proximal end 10 a of theflexible glass bonded substrate 10 magnetically fixed to the outercircumferential surface of the core body 110 can be released therefromwithout the application of physical force, and the strength of themagnetic force is adjustable. It is therefore possible to reduce costsand reduce the weight of the magnetic unit 122.

When the magnet unit 122 fixes the proximal end 10 a of the flexibleglass bonded substrate 10 in this manner, the operation of winding orunwinding the flexible glass bonded substrate 10 may be reliablyperformed.

When the flexible glass bonded substrate 10 is to be accommodated in thestorage container 100 according to the first embodiment, the magnet unit122 is positioned to be close to the slit 111 by rotating the handles113. Subsequently, the operation of holding both transverse sides of theflexible glass bonded substrate 10 and then, pushing the flexible glassbonded substrate 10 into the container body 110 through the slit 111 isperformed. When the flexible glass bonded substrate 10 is pushedinwardly by a certain length, the proximal end 10 a of the flexibleglass bonded substrate 10 formed of a magnetic material is stuck ontothe outer circumferential surface of the core body 121 by beingattracted by the magnetic force of the magnet unit 122. In the positionin which the proximal end 10 a of the flexible glass bonded substrate 10is fixed to the outer circumferential surface of the core body 121, whenthe handles 113 are rotated forwards, the core body 121 connected to thehandles 113 rotates forwards. Consequently, the flexible glass bondedsubstrate 10 having the proximal end 10 a fixed to the outercircumferential surface of the core body 121 is wound around the outercircumferential surface of the core body 121. In this case, letterswritten on or impurities stuck to the surface of the ultrathin glasssheet 12, i.e. the upper surface of the flexible glass bonded substrate10, are erased or removed by the brush 112 disposed on the upper innersurface of the slit 111 while the flexible glass bonded substrate 10 isbeing introduced into the core body 121 through the slit 111.

When the operation of winding the flexible glass bonded substrate 10 iscompleted, the locking unit (not shown) disposed on the handles 113 isset to the locked position, thereby preventing the handles 113 fromrotating backwards or restraining the rotation of the handles.Consequently, it is possible to reliably store or transport flexibleglass bonded substrate 10 accommodated in the storage container 100.

In the case of unwinding the flexible glass bonded substrate 10 woundand accommodated within the storage container 100, the locking unit (notshown) is set to the unlocked position, and subsequently, the handles113 are rotated backwards. Then, the flexible glass bonded substrate 10wound around the core part 120 is withdrawn through the slit 111.Finally, when the flexible glass bonded substrate 10 is pulled from thecontainer body 110 through slight force being applied thereto, theproximal end 10 a of the flexible glass bonded substrate 10 is releasedfrom the outer circumferential surface of the core body 121 to which theproximal end 10 a has been stuck due to the magnetic force of the magnetunit 122. After simply and easily withdrawing the flexible glass bondedsubstrate 10 from the storage container 100 in this manner, the flexibleglass bonded substrate 10 can now be used.

Hereinafter, a storage container according to a second exemplaryembodiment of the present disclosure will be described with reference toFIG. 3 to FIG. 5.

FIG. 3 is an exploded perspective view illustrating the storagecontainer according to the second exemplary embodiment, FIG. 4 is atop-plan view illustrating the core part illustrated in FIG. 3, and FIG.5 is a cross-sectional view illustrating the storage containerillustrated in FIG. 3.

As illustrated in FIG. 3 to FIG. 5, the storage container 200 accordingto the second exemplary embodiment includes the container body 110 and acore part 220.

The second exemplary embodiment is substantially identical to the firstexemplary embodiment, except for the structure of the core part. Likereference numerals will be used to denote the same components anddetailed descriptions thereof will be omitted.

The core part 220 according to the second exemplary embodiment includesa core body 221 and magnet units 222. Both longitudinal ends of the corebody 221 are rotatably coupled to both side walls of the container body110, and are connected to handles 113 projecting from outer surfaces ofboth the side walls of the container body 110. The core body 221includes a plurality of disks 223 and a plurality of connecting bars225.

The plurality of disks 223 are erected to be perpendicular to the bottomsurface of the container body 110, and are spaced apart from each otherin the longitudinal direction (i.e. the direction parallel to the slit111) such that the plurality of disks 223 face each other. In addition,the plurality of connecting bars 225 are disposed on the outercircumferential surfaces of the plurality of disks 223 and extend in thelongitudinal direction of the core body 221 formed by the plurality ofdisks 223 spaced apart from each other, thereby connecting the pluralityof disks 223. As illustrated in FIG. 3 to FIG. 5, the plurality ofconnecting bars 225 may include connecting bar sets disposed on the top,bottom, left, and right sides of the plurality of disks 223, each of theconnecting bar sets consists of two or more connecting bars 225. Forthis, each of the plurality of disks 223 has fitting recesses on theouter circumferential surfaces to a depth corresponding to the thicknessof the connecting bars 225. Each of the connecting bars 225 is fittedinto the corresponding fitting recesses of the plurality of disks 223.Since the connecting bars 225 are fitted to the fitting recesses, thedepth of which corresponds to the thickness of the connecting bars 225,the circumferential surfaces of the disks 223 and the surfaces of theconnecting bars 225 may be coplanar without any differences in height,whereby the flexible glass bonded substrate 10 is provided with windingsurfaces equivalent to the winding surface of the cylindrical core body(121 in FIG. 1) according to the first exemplary embodiment. The corebody 221 is formed as an assembly of the plurality of disks 223 and theplurality of connecting bars 225 in order to minimize weight, wherebythe storage container 200 can be more easily transported. According tothe second exemplary embodiment, each of the plurality of disks 223 hasat least one through hole 224 which is formed through the disk, in orderto further reduce the weight of the core body 221, and consequently, theweight of the storage container 220. The size of the holes 224 may bemaximized within the range in which the strength of the disks 223 ismaintained. Although each of the holes 224 may have the shape of a fanas illustrated in FIG. 3, this is merely illustrative. The holes 224 mayhave a variety of shapes, such as a hook, a cross, or the like, and thenumber of the holes is not limited.

The magnet units 222 are disposed on one or more connecting bars 225among the plurality of connecting bars 225. According to the secondexemplary embodiment, the magnet units 222 are disposed on one set ofconnecting bars 225 on one side of the disks 223. Although the number ofthe connecting bars 225 on which the magnet units 222 are disposed isnot limited, it is preferable that the magnet units 222 be disposed onconnecting bars 225 among the plurality of connecting bars 225 disposedadjacent to each other. The magnet units 222 disposed on the connectingbars 225 adjacent to each other has the following effect: In the case inwhich the flexible glass bonded substrate 10 is required to be woundaround the core part 220, even if the first magnet unit 222 confrontingthe proximal end 10 a of the flexible glass bonded substrate 10 fails tofix the proximal end 10 a of the flexible glass bonded substrate 10 tothe surface thereof by magnetically attracting the proximal end 10 a,the following second or third magnet unit 222 can immediately fix theproximal end 10 a of the flexible glass bonded substrate 10. Asdescribed above, when the magnet units 222 are disposed on theconnecting bars 225 adjacent to each other, the reliability andefficiency of the operation of accommodating the flexible glass bondedsubstrate 10 in the storage container 220 can be improved.

In addition, each of the connecting bars 225 has a plurality of fittingrecesses disposed in the longitudinal direction, the depth of thefitting recesses corresponding to the thickness of the magnet units 222.Thus, one surface of each of the magnet units 222 is exposed externally.Since the proximal end 10 a of the flexible glass bonded substrate 10 isdirectly held by the externally-exposed surfaces of the magnet units222, it is possible to more reliably and securely fix the proximal end10 a of the flexible glass bonded substrate 10 and then, wind theflexible glass bonded substrate 10 around the core body 221. Accordingto the second exemplary embodiment, the connecting bars 225 are fittedinto the fitting recesses formed in the circumferential surfaces of thedisks 223 to the depth corresponding to the thickness of the connectingbars 225, and the magnet units 222 are fitted into the fitting recessesformed in the surfaces of the connecting bars 225 to the depthcorresponding to the thickness of the magnet units 222. Thus, thecircumferential surfaces of the disks 223, the outer surfaces of theconnecting bars 225, and the outer surfaces of the magnet units 225 formsmooth winding surfaces without any differences in height, therebypreventing the flexible glass bonded substrate 10 from being damaged ordeformed while the flexible glass bonded substrate 10 is being wound.

Hereinafter, a storage container according to a third exemplaryembodiment of the present disclosure will be described with reference toFIG. 6.

FIG. 6 is a cross-sectional view illustrating the storage containeraccording to the third exemplary embodiment.

As illustrated in FIG. 6, the storage container 300 includes thecontainer body 110, the core part 220, and a guide part 311.

The third exemplary embodiment is substantially identical to the secondexemplary embodiment, except that the guide part is added. Likereference numerals will be used to denote the same components anddetailed descriptions thereof will be omitted.

The guide part 311 according to the third exemplary embodiment isdisposed on the bottom of the container body 110. The guide part 311guides the proximal end 10 a of the flexible glass bonded substrate 10introduced into the container body 110 through the slit 111 toward thecore part 220, more particularly, toward the magnet units 222, such thatthe proximal end 10 a of the flexible glass bonded substrate 10 can beeasily fixed by the magnet units 222. In this regard, the guide part 311includes an inclined surface 312 inclined upwardly toward the magnetunits 222 of the core part 220 in the direction in which the flexibleglass bonded substrate 10 is introduced. The inclined surface 312 may bea surface of a block, the cross-section of which is a triangle, but thisis not intended to be limiting.

According to the third exemplary embodiment, it is possible to guide theproximal end 10 a of the flexible glass bonded substrate 10 introducedinto the container body 110 to the magnet units 222 of the core part 220along the inclined surface of the guide part 311 disposed on the bottomof the container body 110, whereby the flexible glass bonded substrate10 can be magnetically fixed to the magnet units 222 in a more reliablemanner. In addition, the guide part 311 disposed on the bottom of thecontainer body 110 can reduce the volume of the core part 220 by avolume equal to the volume of the guide part 311 and consequently theweight of the core part 220, whereby the storage container 300 can bemore easily transported. Referring to FIG. 6, the inclined surface 312has a height at which the proximal end 10 a of the flexible glass bondedsubstrate 10 can be directly fixed to the magnet units 222, but this ismerely for clearly illustrating the proximal end 10 a of the flexibleglass bonded substrate 10 being guided toward the magnet units 222 bythe inclined surface 312. Substantially, the inclined surface 312 musthave a height at which the proximal end 10 a of the flexible glassbonded substrate 10 can be guided to the region that the magnetic forceof the magnet units 222 reaches. That is, even in the case in which theflexible glass bonded substrate 10 is introduced on top of the inclinedsurface 312, a gap must remain between the flexible glass bondedsubstrate 10 and the magnet units 222, such that the inclined surface312 does not interfere with the flexible glass bonded substrate 10 whenthe volume of the core part 220 is increased with the flexible glassbonded substrate 10 being wound around the core part 220.

Although the coupling relationship between the core part 220 accordingto the second exemplary embodiment and the guide part 311 according tothe third exemplary embodiment has been illustrated in this part of thespecification, the guide part 311 may be applied as a component guidingthe proximal end 10 a of the flexible glass bonded substrate 10 to themagnet units 122 of the core part 120 (see FIG. 1) according to thefirst exemplary embodiment.

Hereinafter, a storage container according to a fourth exemplaryembodiment of the present disclosure will be described with reference toFIG. 7 to FIG. 9.

FIG. 7 is a cross-sectional view illustrating the storage containeraccording to the fourth exemplary embodiment, and FIG. 8 and FIG. 9 arecross-sectional views schematically illustrating the upward and downwardmovements of the roller according to the thicknesses of flexible glassbonded substrates.

As illustrated in FIG. 7, the storage container 400 according to thefourth exemplary embodiment includes the container body 110, the corepart 220, and a guide part 411.

The fourth exemplary embodiment is substantially identical to the secondexemplary embodiment, except that the guide part is added. Likereference numerals will be used to denote the same components anddetailed descriptions thereof will be omitted.

The guide part 411 according to the fourth exemplary embodiment isdisposed on the bottom of the container body 110. The guide part 411performs a guiding function such that the proximal end 10 a of theflexible glass bonded substrate 10 introduced into the container body110 through the slit 111 is guided toward the magnet units 222 of thecore part 220. In this manner, the guide part 411 helps the proximal end10 a of the flexible glass bonded substrate 10 to be fixed to the magnetunits 222. In this regard, the guide part 411 includes an inclinedsurface 412, a horizontal surface 413, and a roller 415. The inclinedsurface 412 is inclined upwardly toward the magnet units 222 of the corepart 220 in the direction in which the flexible glass bonded substrate10 is introduced. The horizontal surface 412 is formed below the corepart 220 extending from the inclined surface 412. The magnet units 222of the core part 220 are positioned above the horizontal surface 413 inthe case of winding the flexible glass bonded substrate 10 on the corepart 220. At least one roller 415 may be disposed on the horizontalsurface 413. The roller 415 comes into rolling contact with theundersurface of the flexible glass bonded substrate 10 introduced intothe container body 110, i.e. the surface of the base substrate (11 inFIG. 2). Here, the roller 415 is supported elastically in the top-bottomdirection (based on the paper surface of FIG. 7 to FIG. 9) by an elasticmember (not shown), such as a spring, connected thereto. In the storagecontainer 400 according to the fourth exemplary embodiment, the proximalend 10 a of the flexible glass bonded substrate 10 having a variety ofthicknesses can be guided to the magnet units 222 of the core part 220by the roller 415 that is elastically supported in the top-bottomdirection on the horizontal surface 413. Referring to FIG. 7, the roller415 has a height at which the proximal end 10 a of the flexible glassbonded substrate 10 can be directly fixed to the magnet units 222, butthis is merely for clearly illustrating the proximal end 10 a of theflexible glass bonded substrate 10 being guided toward the magnet units222 by the roller 415. Substantially, the roller 415 must have a heightat which the proximal end 10 a of the flexible glass bonded substrate 10can be guided to the region that the magnetic force of the magnet units222 reaches. With this configuration, the roller 415 does not interferewith the flexible glass bonded substrate 10 when the volume of the corepart 220 is increased with the flexible glass bonded substrate 10 beingwound around the core part 220.

FIG. 8 and FIG. 9 are cross-sectional views schematically illustratingthe upward and downward movements of the roller 415 according to thedifferent thicknesses of flexible glass bonded substrates. When aflexible glass bonded substrate 10 having a thickness d2 (FIG. 9)greater than the thickness d1 of a flexible glass bonded substrate 10(FIG. 8) comes into rolling contact with the roller 415, the roller 415moves downwardly. In this position, when the flexible glass bondedsubstrate 10 having the thickness d1 comes into rolling contact with theroller 415, the roller 415 moves upwardly, thereby guiding the proximalend 10 a of the flexible glass bonded substrate 10 toward the magnetunits 222. The downward and upward movements of the roller 415illustrated in FIG. 8 and FIG. 9 are given to only represent therelative movement of the roller 415 depending on the differentthicknesses of the flexible glass bonded substrates 10 during therolling contact of the flexible glass bonded substrates 10 havingdifferent thicknesses with the roller 415. That is, the roller 415initially remains in the position moved to the highest position. Whenflexible glass bonded substrates 10 having a variety of thicknesses comeinto rolling contact with the roller 415, the roller 415 movesdownwardly by an amount corresponding to an amount of pressure appliedthereto, thereby guiding the proximal ends 10 a of the flexible glassbonded substrates 10 having the variety of thicknesses toward the magnetunits 222 such that the proximal ends 10 a can be more easily attractedby the magnetic force of the magnet units 222.

The foregoing descriptions of specific exemplary embodiments of thepresent disclosure have been presented with respect to the drawings.They are not intended to be exhaustive or to limit the presentdisclosure to the precise forms disclosed, and obviously manymodifications and variations are possible for a person having ordinaryskill in the art in light of the above teachings.

It is intended therefore that the scope of the present disclosure not belimited to the foregoing embodiments, but be defined by the Claimsappended hereto and their equivalents.

1. A storage container comprising: a container body having an entrancethrough which a flexible glass-bonded substrate is introduced andwithdrawn, the flexible glass-bonded substrate having magnetism; and acore part rotatably disposed within the container body, wherein the corepart can magnetically hold a proximal end of the flexible glass-bondedsubstrate introduced into the container body through the entrance, suchthat the flexible glass-bonded substrate is wound around an outercircumferential surface of the core part when the core part is rotated.2. The storage container of claim 1, wherein the entrance comprises aslit, and the core part is configured to extend in parallel with theslit within the container body.
 3. The storage container of claim 1,wherein the core part comprises magnet units which enables the core partto magnetically hold the proximal end of the flexible glass-bondedsubstrate.
 4. The storage container of claim 3, wherein the core partfurther comprises a core body having both ends opposing each other in alongitudinal direction of the core body, and are rotatably coupled tocorresponding walls of the container body.
 5. The storage container ofclaim 4, wherein the core body has a cylindrical shape and has a hollowinterior space therein; and the magnet units are arranged on an innercircumferential surface of the core body in the longitudinal directionof the core body, thereby the proximal end of the flexible glass-bondedsubstrate sticking to an outer circumferential surface of the core body.6. The storage container of claim 4, wherein the magnet units arearranged on an outer circumferential surface of the core body in thelongitudinal direction of the core body, thereby the proximal end of theflexible glass-bonded substrate sticking to the magnet units.
 7. Thestorage container of claim 4, wherein the core body comprises: aplurality of disks erected perpendicularly to a bottom surface of thecontainer body, and spaced apart from each other in the longitudinaldirection of the core body while facing each other; and a plurality ofconnecting bars connecting outer circumferential surfaces of theplurality of disks together and extending in the longitudinal directionof the core body.
 8. The storage container of claim 7, wherein each ofthe disks has at least one hole extending through a thickness thereof.9. The storage container of claim 7, wherein the magnet units aredisposed on at least one connecting bar among the plurality ofconnecting bars.
 10. The storage container of claim 7, wherein themagnet units are disposed on at least two connecting bars adjacent toeach other among the plurality of connecting bars.
 11. The storagecontainer of claim 7, wherein the plurality of disks have fittingrecesses on the outer circumferential surfaces of the disks, eachfitting recess having a depth corresponding to a thickness of eachconnecting bar, and the plurality of connecting bars are fitted into thefitting recesses of the plurality of disks.
 12. The storage container ofclaim 7, wherein the plurality of connecting bars have recesses onsurfaces thereof, each recess having a depth corresponding to athickness of each magnet unit, and the magnet units are fitted into therecesses of the plurality of connecting bars.
 13. The storage containerof claim 1, further comprising a guide part disposed on a bottom surfaceof the container body, the guide part guiding the flexible glass-bondedsubstrate introduced into the container body toward the core part. 14.The storage container of claim 13, wherein the guide part comprises aninclined surface inclined upwardly toward the core part in a directionin which the flexible glass-bonded substrate is introduced.
 15. Thestorage container of claim 14, wherein the guide part further comprisesa horizontal surface below the core part and connected to the inclinedsurface, the storage container further comprising at least one rollerdisposed on the horizontal surface, the at least one roller being inrolling contact with an underside surface of the flexible glass-bondedsurface.
 16. The storage container of claim 15, wherein the roller iselastically supported in a top-bottom direction.
 17. The storagecontainer of claim 1, further comprising a brush on an upper surface ofthe entrance, such that an upper surface of the flexible glass-bondedsubstrate comes into contact with the brush.
 18. The storage containerof claim 1, further comprising handles connected to the core part, andprojecting from outer surfaces of the container body, such that a usercan rotate the core part using the handles.
 19. The storage container ofclaim 1, wherein the flexible glass-bonded substrate comprises a basesubstrate and an ultra-thin sheet of glass bonded to the base substrate.20. The storage container of claim 19, wherein a thickness of theultra-thin sheet of glass is 0.3 mm or less. 21-23. (canceled)